Modern philosophy.Library of modern philosophy.Part 1. The problem of matter and energy

Bychkovsky, B.S.Modern philosophy.- St. Petersburg: [B.I.], 1911. - (Library of modern philosophy).1. The people (collection).Electronic copy source: PBOriginal storage location: REUPart 1: The problem of matter and energy.- ed.T -va "Public benefits", 1911. -[4], 304, [4] s .. -(Library of modern philosophy; Issue 4).-Bibliogr.In the settling.Note..1. The people (collection).Electronic copy source: PBOriginal storage location: REU